This problem ________ be talked about an...

This problem ________ be talked about any more. We’ve found the solution.

A. mustn’t B. shouldn’t

C. needn’t D. can’t

C 【解析】试题分析：句意：我们没有必要再谈论这个问题了。我们已经找到解决方案了。A. mustn’t不准；B. shouldn’t不应该； C. needn’t 不必；D. can’t不能。根据句意及题干分析此题应选C。考点：考查情态动词的用法

考点分析：

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